Let's divide 317921 by 42
Let's see how many times 42 fits into 317921.

On to step 1:
The number 42 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 42

Moving on to step 2:
42 goes into 31 0 times with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Grab the next digit (7) from the dividend, add it to 31, then carry on: 317 / 42

Moving on to step 3:
317 divided by 42 is 7 with a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 294 from 317 leaves us with 23.
Append the next digit (9) from the dividend to 23 and continue with: 239 / 42

Moving on to step 4:
42 goes into 239 5 times with a remainder of 29.
The next digit of our result is 5. 
Result so far: 75.0
If we take 210 away from 239, we end up with 29.
Take the next digit (2) from the dividend and append it to 29, then repeat: 292 / 42

On to step 5:
42 can be fit into 292 6 times, resulting in a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 756.0
If we subtract 252 from 292, we get 40.
Take the next digit (1) from the dividend and append it to 40, then repeat: 401 / 42

Moving on to step 6:
If we divide 401 by 42, we get 9 and a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 7569.0
Deduct 378 from 401 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
42 goes into 230 5 times with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 7569.5
Deduct 210 from 230 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
200 divided by 42 is 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 7569.54
Deduct 168 from 200 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
320 divided by 42 is 7 with a remainder of 26.
Record the quotient 7 as the next digit in the result. 
Result so far: 7569.547
The remainder is 26 after subtracting 294 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 10:
When dividing 260 by 42, we get 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 7569.5476
The remainder is 8 after subtracting 252 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
The number 42 fits into 80 1 times, leaving a remainder of 38.
The next digit of our result is 1. 
Result so far: 7569.54761
If we subtract 42 from 80, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
If we divide 380 by 42, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 7569.547619
The remainder is 2 after subtracting 378 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 13:
When dividing 20 by 42, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7569.547619
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 14:
The number 42 fits into 200 4 times, leaving a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 7569.54761904
If we subtract 168 from 200, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 7569.54761904 and a remainder of 3.2e-08.